STW8019 datasheet(44/66 Pages) STMICROELECTRONICS

44 / 66 page

STw8009/STw8019

Control registers

43/65

hue_control [6:0]: absolute value of phase adjustment, range 1 to 127.

LSB (0x01) implies 0.17578127 degrees, 0x7F imply 22.324 degrees

hue_control [7]: Sign of phase

1 = +ve; (*) 0 = -ve

(*)

dac1_mult(5:0): multiplying factor on dac1_y digital signal before the D/A converters with

0.78% step.

main_chr_del[3:0]: delay on chroma path with reference to luma path on encoded

component outputs. The delay value varies with modes and the delays are hardwired to

have different delays in different modes. If the delays are to be made programmable make

bitmain_chr_del_en = 1 (Reg 109). That way, soft delay from main_chr_del[3:0] is enabled.

“00000000”

: No phase shift

“10000000”

: No phase shift

“11111111”

: +22.324 degrees phase

“01111111”

: -22.324 degrees phase

dac1 multiplying factor Address: 0x006A

Type: R/W

content

xxx

dac1_

mult5

dac1_

mult4

dac1_

mult3

dac1_

mult2

dac1_

mult1

dac1_

mult0

default

1000

Table 19.

dac1_multi[5:0]

dac1_mult[5:0]

75.00%

75.78%

76.56%

77.34%

...

(*)

100%

...

124.22%

Chroma Delay

Address: 0x006C

Type: R/W

content

main_chr_

del3

main_chr_

del2

main_chr_

del1

main_chr_

del0

default

[0]

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